/*
    Copyright (c) 2020, GigaDevice Semiconductor Inc.

    Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

    1. Redistributions of source code must retain the above copyright notice, this 
       list of conditions and the following disclaimer.
    2. Redistributions in binary form must reproduce the above copyright notice, 
       this list of conditions and the following disclaimer in the documentation 
       and/or other materials provided with the distribution.
    3. Neither the name of the copyright holder nor the names of its contributors 
       may be used to endorse or promote products derived from this software without 
       specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
OF SUCH DAMAGE.
*/
/*
 * @Author: Even
 * @Date: 2024-02-06 11:02:16
 * @LastEditors: Even
 * @LastEditTime: 2024-02-06 12:03:23
 * @FilePath: \snapmaker-copy\Toolchain\startup_gd32f30x_hd_GNU.s
 * @Description: This is a GNU-style startup file for GigaDevice GD32f30x.
 * While using CMake + arm-none-eabi-gcc toolchian,this file is required.
 * This file is based on ARM keil startup file and refers to ST CubeMx generated GNU-style startup file.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * Author Contact: https://github.com/even904; https://gitee.com/zhang-yinnan
 */
  .syntax unified
  .cpu cortex-m4
  .fpu softvfp
  .thumb

.global  g_pfnVectors
.global  Default_Handler

/* start address for the initialization values of the .data section. 
defined in linker script */
.word  _sidata
/* start address for the .data section. defined in linker script */  
.word  _sdata
/* end address for the .data section. defined in linker script */
.word  _edata
/* start address for the .bss section. defined in linker script */
.word  _sbss
/* end address for the .bss section. defined in linker script */
.word  _ebss
/* stack used for SystemInit_ExtMemCtl; always internal RAM used */

    .section  .text.Reset_Handler
  .weak  Reset_Handler
  .type  Reset_Handler, %function
Reset_Handler:  
  ldr   sp, =_estack     /* set stack pointer */

/* Copy the data segment initializers from flash to SRAM */
  ldr r0, =_sdata
  ldr r1, =_edata
  ldr r2, =_sidata
  movs r3, #0
  b LoopCopyDataInit

CopyDataInit:
  ldr r4, [r2, r3]
  str r4, [r0, r3]
  adds r3, r3, #4

LoopCopyDataInit:
  adds r4, r0, r3
  cmp r4, r1
  bcc CopyDataInit
  
/* Zero fill the bss segment. */
  ldr r2, =_sbss
  ldr r4, =_ebss
  movs r3, #0
  b LoopFillZerobss

FillZerobss:
  str  r3, [r2]
  adds r2, r2, #4

LoopFillZerobss:
  cmp r2, r4
  bcc FillZerobss

/* Call the clock system initialization function.*/
  bl  SystemInit   
/* Call static constructors */
    bl __libc_init_array
/* Call the application's entry point.*/
  bl  main
  bx  lr    
.size  Reset_Handler, .-Reset_Handler

/**
 * @brief  This is the code that gets called when the processor receives an 
 *         unexpected interrupt.  This simply enters an infinite loop, preserving
 *         the system state for examination by a debugger.
 * @param  None     
 * @retval None       
*/
    .section  .text.Default_Handler,"ax",%progbits
Default_Handler:
Infinite_Loop:
  b  Infinite_Loop
  .size  Default_Handler, .-Default_Handler
/******************************************************************************
*
* The minimal vector table for a Cortex M3. Note that the proper constructs
* must be placed on this to ensure that it ends up at physical address
* 0x0000.0000.
* 
*******************************************************************************/
   .section  .isr_vector,"a",%progbits
  .type  g_pfnVectors, %object
  .size  g_pfnVectors, .-g_pfnVectors

   
g_pfnVectors:
  .word  _estack
  .word  Reset_Handler
  .word  NMI_Handler
  .word  HardFault_Handler
  .word  MemManage_Handler
  .word  BusFault_Handler
  .word  UsageFault_Handler
  .word  0
  .word  0
  .word  0
  .word  0
  .word  SVC_Handler
  .word  DebugMon_Handler
  .word  0
  .word  PendSV_Handler
  .word  SysTick_Handler
  
  /* External Interrupts */
  .word     WWDGT_IRQHandler                  
  .word     LVD_IRQHandler                    
  .word     TAMPER_IRQHandler           
  .word     RTC_IRQHandler               
  .word     FMC_IRQHandler                   
  .word     RCU_CTC_IRQHandler                   
  .word     EXTI0_IRQHandler                  
  .word     EXTI1_IRQHandler                 
  .word     EXTI2_IRQHandler                
  .word     EXTI3_IRQHandler                 
  .word     EXTI4_IRQHandler                  
  .word     DMA0_Channel0_IRQHandler         
  .word     DMA0_Channel1_IRQHandler          
  .word     DMA0_Channel2_IRQHandler        
  .word     DMA0_Channel3_IRQHandler         
  .word     DMA0_Channel4_IRQHandler          
  .word     DMA0_Channel5_IRQHandler          
  .word     DMA0_Channel6_IRQHandler          
  .word     ADC0_1_IRQHandler                   
  .word     USBD_HP_CAN0_TX_IRQHandler
  .word     USBD_LP_CAN0_RX0_IRQHandler
  .word     CAN0_RX1_IRQHandler               
  .word     CAN0_EWMC_IRQHandler               
  .word     EXTI5_9_IRQHandler                
  .word     TIMER0_BRK_IRQHandler    
  .word     TIMER0_UP_IRQHandler   
  .word     TIMER0_TRG_CMT_IRQHandler 
  .word     TIMER0_Channel_IRQHandler        
  .word     TIMER1_IRQHandler             
  .word     TIMER2_IRQHandler                 
  .word     TIMER3_IRQHandler                 
  .word     I2C0_EV_IRQHandler                
  .word     I2C0_ER_IRQHandler               
  .word     I2C1_EV_IRQHandler               
  .word     I2C1_ER_IRQHandler               
  .word     SPI0_IRQHandler                  
  .word     SPI1_IRQHandler                   
  .word     USART0_IRQHandler                 
  .word     USART1_IRQHandler                 
  .word     USART2_IRQHandler                
  .word     EXTI10_15_IRQHandler              
  .word     RTC_Alarm_IRQHandler             
  .word     USBD_WKUP_IRQHandler
  .word     TIMER7_BRK_IRQHandler   
  .word     TIMER7_UP_IRQHandler  
  .word     TIMER7_TRG_CMT_IRQHandler 
  .word     TIMER7_Channel_IRQHandler         
  .word     ADC2_IRQHandler         
  .word     EXMC_IRQHandler                   
  .word     SDIO_IRQHandler                   
  .word     TIMER4_IRQHandler                 
  .word     SPI2_IRQHandler                  
  .word     UART3_IRQHandler                  
  .word     UART4_IRQHandler                  
  .word     TIMER5_IRQHandler             
  .word     TIMER6_IRQHandler                
  .word     DMA1_Channel0_IRQHandler          
  .word     DMA1_Channel1_IRQHandler         
  .word     DMA1_Channel2_IRQHandler         
  .word     DMA1_Channel3_4_IRQHandler
                         
                         
/*******************************************************************************
*
* Provide weak aliases for each Exception handler to the Default_Handler. 
* As they are weak aliases, any function with the same name will override 
* this definition.
* 
*******************************************************************************/
  .weak	NMI_Handler
	.thumb_set NMI_Handler,Default_Handler

  .weak	HardFault_Handler
	.thumb_set HardFault_Handler,Default_Handler

  .weak	MemManage_Handler
	.thumb_set MemManage_Handler,Default_Handler

  .weak	BusFault_Handler
	.thumb_set BusFault_Handler,Default_Handler

	.weak	UsageFault_Handler
	.thumb_set UsageFault_Handler,Default_Handler

	.weak	SVC_Handler
	.thumb_set SVC_Handler,Default_Handler

	.weak	DebugMon_Handler
	.thumb_set DebugMon_Handler,Default_Handler

	.weak	PendSV_Handler
	.thumb_set PendSV_Handler,Default_Handler

	.weak	SysTick_Handler
	.thumb_set SysTick_Handler,Default_Handler

    .weak   WWDGT_IRQHandler                  
    .thumb_set  WWDGT_IRQHandler          ,Default_Handler
    
    .weak   LVD_IRQHandler                    
    .thumb_set  LVD_IRQHandler            ,Default_Handler
                      
    .weak   TAMPER_IRQHandler                 
    .thumb_set  TAMPER_IRQHandler         ,Default_Handler
               
    .weak   RTC_IRQHandler                    
    .thumb_set  RTC_IRQHandler            ,Default_Handler
                   
    .weak   FMC_IRQHandler                    
    .thumb_set  FMC_IRQHandler            ,Default_Handler
                    
    .weak   RCU_CTC_IRQHandler                
    .thumb_set  RCU_CTC_IRQHandler        ,Default_Handler
                     
    .weak   EXTI0_IRQHandler                  
    .thumb_set  EXTI0_IRQHandler          ,Default_Handler
                      
    .weak   EXTI1_IRQHandler                  
    .thumb_set  EXTI1_IRQHandler          ,Default_Handler
                     
    .weak   EXTI2_IRQHandler                  
    .thumb_set  EXTI2_IRQHandler          ,Default_Handler
                   
    .weak   EXTI3_IRQHandler                  
    .thumb_set  EXTI3_IRQHandler          ,Default_Handler
                    
    .weak   EXTI4_IRQHandler                  
    .thumb_set  EXTI4_IRQHandler          ,Default_Handler
                     
    .weak   DMA0_Channel0_IRQHandler          
    .thumb_set  DMA0_Channel0_IRQHandler  ,Default_Handler
             
    .weak   DMA0_Channel1_IRQHandler          
    .thumb_set  DMA0_Channel1_IRQHandler  ,Default_Handler
              
    .weak   DMA0_Channel2_IRQHandler          
    .thumb_set  DMA0_Channel2_IRQHandler  ,Default_Handler
            
    .weak   DMA0_Channel3_IRQHandler          
    .thumb_set  DMA0_Channel3_IRQHandler  ,Default_Handler
             
    .weak   DMA0_Channel4_IRQHandler          
    .thumb_set  DMA0_Channel4_IRQHandler  ,Default_Handler
              
    .weak   DMA0_Channel5_IRQHandler          
    .thumb_set  DMA0_Channel5_IRQHandler  ,Default_Handler
              
    .weak   DMA0_Channel6_IRQHandler          
    .thumb_set  DMA0_Channel6_IRQHandler  ,Default_Handler
              
    .weak   ADC0_1_IRQHandler                 
    .thumb_set  ADC0_1_IRQHandler         ,Default_Handler
             
    .weak   USBD_HP_CAN0_TX_IRQHandler        
    .thumb_set  USBD_HP_CAN0_TX_IRQHandler,Default_Handler
              
    .weak   USBD_LP_CAN0_RX0_IRQHandler       
    .thumb_set  USBD_LP_CAN0_RX0_IRQHandle,Default_Handler
              
    .weak   CAN0_RX1_IRQHandler               
    .thumb_set  CAN0_RX1_IRQHandler       ,Default_Handler
               
    .weak   CAN0_EWMC_IRQHandler              
    .thumb_set  CAN0_EWMC_IRQHandler      ,Default_Handler
               
    .weak   EXTI5_9_IRQHandler                
    .thumb_set  EXTI5_9_IRQHandler        ,Default_Handler
               
    .weak   TIMER0_BRK_IRQHandler             
    .thumb_set  TIMER0_BRK_IRQHandler     ,Default_Handler
        
    .weak   TIMER0_UP_IRQHandler              
    .thumb_set  TIMER0_UP_IRQHandler      ,Default_Handler
        
    .weak   TIMER0_TRG_CMT_IRQHandler         
    .thumb_set  TIMER0_TRG_CMT_IRQHandler ,Default_Handler
        
    .weak   TIMER0_Channel_IRQHandler         
    .thumb_set  TIMER0_Channel_IRQHandler ,Default_Handler
            
    .weak   TIMER1_IRQHandler                 
    .thumb_set  TIMER1_IRQHandler         ,Default_Handler
           
    .weak   TIMER2_IRQHandler                 
    .thumb_set  TIMER2_IRQHandler         ,Default_Handler
               
    .weak   TIMER3_IRQHandler                 
    .thumb_set  TIMER3_IRQHandler         ,Default_Handler
               
    .weak   I2C0_EV_IRQHandler                
    .thumb_set  I2C0_EV_IRQHandler        ,Default_Handler
              
    .weak   I2C0_ER_IRQHandler                
    .thumb_set  I2C0_ER_IRQHandler        ,Default_Handler
             
    .weak   I2C1_EV_IRQHandler                
    .thumb_set  I2C1_EV_IRQHandler        ,Default_Handler
             
    .weak   I2C1_ER_IRQHandler                
    .thumb_set  I2C1_ER_IRQHandler        ,Default_Handler
             
    .weak   SPI0_IRQHandler                   
    .thumb_set  SPI0_IRQHandler           ,Default_Handler
            
    .weak   SPI1_IRQHandler                   
    .thumb_set  SPI1_IRQHandler           ,Default_Handler
              
    .weak   USART0_IRQHandler                 
    .thumb_set  USART0_IRQHandler         ,Default_Handler
             
    .weak   USART1_IRQHandler                 
    .thumb_set  USART1_IRQHandler         ,Default_Handler
             
    .weak   USART2_IRQHandler                 
    .thumb_set  USART2_IRQHandler         ,Default_Handler
            
    .weak   EXTI10_15_IRQHandler              
    .thumb_set  EXTI10_15_IRQHandler      ,Default_Handler
            
    .weak   RTC_Alarm_IRQHandler              
    .thumb_set  RTC_Alarm_IRQHandler      ,Default_Handler
            
    .weak   USBD_WKUP_IRQHandler              
    .thumb_set  USBD_WKUP_IRQHandler      ,Default_Handler
            
    .weak   TIMER7_BRK_IRQHandler             
    .thumb_set  TIMER7_BRK_IRQHandler     ,Default_Handler
          
    .weak   TIMER7_UP_IRQHandler              
    .thumb_set  TIMER7_UP_IRQHandler      ,Default_Handler
         
    .weak   TIMER7_TRG_CMT_IRQHandler         
    .thumb_set  TIMER7_TRG_CMT_IRQHandler ,Default_Handler
         
    .weak   TIMER7_Channel_IRQHandler         
    .thumb_set  TIMER7_Channel_IRQHandler ,Default_Handler
            
    .weak   ADC2_IRQHandler                   
    .thumb_set  ADC2_IRQHandler           ,Default_Handler
           
    .weak   EXMC_IRQHandler                   
    .thumb_set  EXMC_IRQHandler           ,Default_Handler
             
    .weak   SDIO_IRQHandler                   
    .thumb_set  SDIO_IRQHandler           ,Default_Handler
             
    .weak   TIMER4_IRQHandler                 
    .thumb_set  TIMER4_IRQHandler         ,Default_Handler
               
    .weak   SPI2_IRQHandler                   
    .thumb_set  SPI2_IRQHandler           ,Default_Handler
              
    .weak   UART3_IRQHandler                  
    .thumb_set  UART3_IRQHandler          ,Default_Handler
              
    .weak   UART4_IRQHandler                  
    .thumb_set  UART4_IRQHandler          ,Default_Handler
              
    .weak   TIMER5_IRQHandler                 
    .thumb_set  TIMER5_IRQHandler         ,Default_Handler
             
    .weak   TIMER6_IRQHandler                 
    .thumb_set  TIMER6_IRQHandler         ,Default_Handler
            
    .weak   DMA1_Channel0_IRQHandler          
    .thumb_set  DMA1_Channel0_IRQHandler  ,Default_Handler
              
    .weak   DMA1_Channel1_IRQHandler          
    .thumb_set  DMA1_Channel1_IRQHandler  ,Default_Handler
              
    .weak   DMA1_Channel2_IRQHandler          
    .thumb_set  DMA1_Channel2_IRQHandler  ,Default_Handler
             
    .weak   DMA1_Channel3_4_IRQHandler        
    .thumb_set  DMA1_Channel3_4_IRQHandler,Default_Handler
    
